4 years ago

TRUE OR FALSE!

Mathematics

2 answers:

Lady_Fox [76]4 years ago

8 0

Answer:

True

Step-by-step explanation:

katovenus [111]4 years ago

8 0

True! I think this is true

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Given a right triangle with legs a, b and hypotenuse c, solve for b if a= 72 and c= 75

kotykmax [81]

Answer:

The answer is a. 21.

Step-by-step explanation:

We solve this question by using Pythagoras theorem to relate the sides of a right angled triangle.

Here,

Hypotenuse of the given triangle(c)=75

Two sides of right angled triangle are:

a=72

b=?

Then,

for a given right angled triangle abc,

Using Pythagoras theorem,

$c=\sqrt{a^{2} +b^{2} }$

Squaring on both sides,

$c^{2} =a^{2}+b^{2}$

or, $75^{2}=72^{2}+b^{2}$

or, $b^{2}=75^{2}-72^{2}$

or, $b^{2}=5625- 5184$

or, $b^{2} =441$

∴ $b=21$

So, the value of b is obtained to 21 by the use of Pythagoras theorem.

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3 years ago

Write the polynomial in standard form 7x+3+5x^2

natka813 [3]

It’s should 5x^2+7x+3 in standard form

5 0

3 years ago

Z1 and Z2 are vertical angles. Z2 has measure of 93° what is the measure of Z1? enter your answer in the box.

Soloha48 [4]

Answer:

m∠Z1 = 93°

Step-by-step explanation:

Vertical Angles are the angles opposite each other when two lines cross.

They are congruent (the same as each other).

Therefore, m∠Z1 = m∠Z2, so if m∠Z2 = 93° then m∠Z1 = 93°

6 0

2 years ago

<img src="https://tex.z-dn.net/?f=56x%5E%7B2%7D%20%5Csqrt%7Bx%7D%2077" id="TexFormula1" title="56x^{2} \sqrt{x} 77" alt="56x^{2}

ELEN [110]

Answer:

$4312 { x }^{ \frac{5}{2} }$

Step-by-step explanation:

56*77=4312

$x ^{2} \times \sqrt{x} = x ^{2} \times {x}^{ \frac{1}{2} } = {x}^{ \frac{5}{2} }$

3 0

3 years ago

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Find the value of y when x = 4 in the equation 4x - 2 = y + 5 Show your work help

elena-s [515]

First, substitute 4 into x
Then multiply 4 times 4
Subtract 2
Then subtract 5 from both sides

5 0

3 years ago

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